Original Bird Art Painting - Northern Mockingbird (Texas State Bird) and Bluebonnet Flower (Texas State Flower) by Arthur Singer, Signed (lower right) and Alan Singer, Signed (lower left), Dated 12/21/78, Gouache on Board, Unframed, Original painting used for the most popular United States Postal Stamp Series produced in US History. This painting was part of a collaborative effort of father (Arthur Singer - painted the birds) and son (Alan Singer - painted the flora). This is an extraordinary and historical work of art. Please see my other painting in this series for sale.